// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#pragma once

#include "ngraph/op/op.hpp"

namespace ngraph {
namespace op {
struct NGRAPH_API PriorBoxClusteredAttrs {
    // widths         Desired widths of prior boxes
    // heights        Desired heights of prior boxes
    // clip           Clip output to [0,1]
    // step_widths    Distance between prior box centers
    // step_heights   Distance between prior box centers
    // step           Distance between prior box centers (when step_w = step_h)
    // offset         Box offset relative to top center of image
    // variances      Values to adjust prior boxes with
    std::vector<float> widths;
    std::vector<float> heights;
    bool clip = true;
    float step_widths = 0.0f;
    float step_heights = 0.0f;
    float step = 0.0f;
    float offset = 0.0f;
    std::vector<float> variances;
};

namespace v0 {
/// \brief Layer which generates prior boxes of specified sizes
/// normalized to input image size
class NGRAPH_API PriorBoxClustered : public Op {
public:
    NGRAPH_RTTI_DECLARATION;

    PriorBoxClustered() = default;
    /// \brief Constructs a PriorBoxClustered operation
    ///
    /// \param layer_shape    Shape of layer for which prior boxes are computed
    /// \param image_shape    Shape of image to which prior boxes are scaled
    /// \param attrs          PriorBoxClustered attributes
    PriorBoxClustered(const Output<Node>& layer_shape,
                      const Output<Node>& image_shape,
                      const PriorBoxClusteredAttrs& attrs);

    void validate_and_infer_types() override;
    virtual std::shared_ptr<Node> clone_with_new_inputs(const OutputVector& new_args) const override;
    const PriorBoxClusteredAttrs& get_attrs() const {
        return m_attrs;
    }
    bool visit_attributes(AttributeVisitor& visitor) override;
    bool evaluate(const HostTensorVector& outputs, const HostTensorVector& inputs) const override;
    bool has_evaluate() const override;

private:
    PriorBoxClusteredAttrs m_attrs;
};
}  // namespace v0
using v0::PriorBoxClustered;
}  // namespace op
}  // namespace ngraph
